R: Computing Subscores in Classical Test Theory and Item Response Theory

# Computing Subscores in Classical Test Theory and Item Response Theory

## Documentation for package ‘subscore’ version 3.3

- DESCRIPTION file

## Help Pages

CTTsub | This main function estimates true subscores using different methods based on original CTT scores.
data.prep | This function prepares data into a required list format
scored.data | Sample scored data
subscore.corr | Computing correlation indices for subscores and the total score.
subscore.s | Computing subscores using Haberman's method based on observed subscores.
subscore.sx | Computing subscores using Haberman's method based on both observed total scores and observed subscores.
subscore.Wainer | Estimating true subscores using Wainer's augmentation method
subscore.x | Computing subscores using Haberman's method based on observed total scores.
test.data | A list of objects that include both test information and subscores.
TIMSS11G8M.data | The 2011 TIMSS Grade 8 Mathematics Assessment Dataset
Yen.OPI | Estimating true subscores using Yen's OPI
Yen.Q3 | Computing Yen's Q3 statistic for unidimensional Rasch, 1-, 2-, and 3-PL logistic IRT models